Farklı İBA konsantrasyonları ve bekletme sürelerinde bozkır otu çeliklerinin çoğaltılması

Abstract

Yarı çalı bir yem bitkisi olan bozkır otu, Türkiye’nin kurak alanlarındaki meralarda doğal olarak yetişmektedir. Bozkır otunun doğada tohum ile büyümesi çok yavaş ve tohum canlılığı süresinin kısa olması ülkemizde bozkır otu tarımında kısıtlamaya neden olmaktadır. Vejetatif çoğaltma yöntemi olarak çelikle çoğaltma ile bozkır otu fidesi daha kısa sürede seri bir şekilde üretilebilir. Bu sebeple, Tesadüf Parselleri Deneme Desenine göre serada yürütülen bu çalışmada 4 adet sürede (5, 30, 180 ve 900 s) ve 12 farklı IBA konsantrasyonlarına (250, 500, 1000, 1500, 2000, 2500, 3000, 4000, 5000, 6000, 10000 ve 15000 mg kg-1) bozkır otu çelikleri maruz bırakıldı. Bu çeliklerin köklenme yüzdesi, kök sayısı, fide ve kök uzunluğu, yaş fide ve kök ağırlığı, kuru kök ağırlığı ve yaprak sararması incelenmiştir. Çeliklerde köklenme yüzdesi (%100), kök sayısı (>7 adet), fide uzunluğu (>20 cm), kök uzunluğu (>10 cm), kök ağırlığı (>0.60 g), kuru kök ağırlığı (>0.1 g) ve yaprak sararması (Skor >1.60) açısından en iyi gelişim 900 saniyede 500 mg kg-1 IBA, 180 saniyede 5.000 mg kg-1 IBA ve 5 saniyede 10.000 mg kg-1 IBA konsantrasyonlarından elde edilmiştir. Sonuç olarak bozkır otunun ekonomik ve hızlı bir şekilde çelikle çoğaltılması için 900 saniyede 500 mg kg-1 IBA, 180 saniyede 5.000 mg kg-1 IBA ve 5 saniyede 10.000 mg kg-1 IBA konsantrasyonları önerilmektedir.

Keywords

• Bassia prostrata
• Bozkır otu
• İndol-3-bütirik asit (IBA)
• Vejetatif Çoğaltma

The propagation of forage kochia cutting in different IBA concentrations and at holding times

Abstract

Forage kochia, a subshrub forage plant, grows naturally in the pastures of dry areas in Turkey. Their seeds grow slowly in nature, and being short duration of seed viability could be caused by limitations on the cultivation of forage kochia in Turkey. Forage kochia seedlings can be produced serially quickly with cutting propagation as vegetation propagation method. Therefore, forage kochia cuttings were exposed to 12 different IBA concentrations (250, 500, 1000, 1500, 2000, 2500, 3000, 4000, 5000, 6000, 10000, and 15000 mg kg-1) at four holding times (5, 30, 180, and 900 s) in this research carried out Completely Randomized Design in the greenhouse. We investigated the percentage of rooting, the number of the root, shoot and root length, shoot and root weight, dry root weight, and leave yellowing of these cutting. The best developments in the percentage of rooting (100%), number of roots (> 7), shoot length (> 20 cm), root length (>10 cm), root weight (>0.60 g), dry root weight (>0.1 g) and leave yellowing (score >1.60) were obtained from 500 mg kg-1 IBA at 900 s, 5000 mg kg-1 IBA at 180 s, and 10000 mg kg-1 IBA at 5 s interactions. As a result, we advised 500 mg kg-1 IBA at 900 s, 5000 mg kg-1 IBA at 180 s and 10000 mg kg-1 IBA at 5 s for the quick and economically cutting propagation of forage kochia.

Keywords

• Bassia prostrata
• Forage Kochia
• Indole-3-butyric acid (IBA)
• vegetative propagation

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